google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
  var data = new google.visualization.DataTable();
       data.addColumn('string', '日');
       data.addColumn('number', '推測');
       data.addColumn('number', '推測');
       data.addColumn('number', 'iOS前月');
       data.addColumn('number', 'iOS当月');
       data.addRows([
        ['1日',null,830,null,null],
['2日',null,901,null,null],
['3日',null,821,null,null],
['4日',659,864,null,null],
['5日',789,679,null,null],
['6日',865,745,null,null],
['7日',592,599,null,null],
['8日',657,439,null,null],
['9日',926,640,null,null],
['10日',593,524,null,null],
['11日',882,484,null,null],
['12日',882,707,null,null],
['13日',875,646,null,null],
['14日',null,582,null,null],
['15日',930,677,null,null],
['16日',931,636,null,null],
['17日',721,700,null,null],
['18日',829,635,null,null],
['19日',946,874,null,null],
['20日',null,995,null,null],
['21日',null,602,null,null],
['22日',703,612,null,null],
['23日',798,629,null,null],
['24日',685,649,null,null],
['25日',null,854,null,null],
['26日',993,591,null,null],
['27日',842,496,null,null],
['28日',922,557,null,null],
['29日',676,710,null,null],
['30日',919,676,null,null],
['31日',711,null,null,null]
        ]);
  var options = {
    chartArea: {'width':'85%', 'height':'65%', 'left':60 },
    'pointSize': 3,
    hAxis: { titleTextStyle:{italic:false}, format:'#',ticks: [1,5,10,15,20,25,30] },
    vAxis: { title:'2024年4月ランキング',  titleTextStyle:{italic:false}, format:'#',viewWindow:{min:0,max:1000},direction:-1 },
    legend: {position: 'top' },
    tooltip: { trigger: 'both' },
    focusTarget: 'category',
    colors:['skyblue','pink','#2980b9','#e74c3c']
  };

  var chart = new google.visualization.LineChart(document.getElementById('graphField'));
  chart.draw(data, options);

  var lastlogday=30 -1 ;
  var lastlogcat=2;

  if(lastlogday>=0){
    chart.setSelection([{
      row: lastlogday,
      column: lastlogcat
    }]);
  
    google.visualization.events.addListener(chart, 'click', function() {
      if(chart.getSelection()[0]){
        //chart.setSelection(null)
      }
    });
  }

});